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Top 22 Objective-C OSX Projects
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Sloth
Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.
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Project mention: Perfect Claude Code Notifications Setup with Tailscale and ntfy | dev.to | 2026-02-26
This is the tool I built to solve that: claude-notifier. It handles multiple notification channels, sending to ntfy but also to native system notifications (in Mac, via terminal-notifier).
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Project mention: Platypus – create native Mac applications from command line scripts | news.ycombinator.com | 2026-06-02
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SubEthaEdit
General purpose plain text editor for macOS. Widely known for its live collaboration feature.
Project mention: Show HN: Write.md, a free, open-source, themeable Markdown editor for macOS | news.ycombinator.com | 2026-08-11SubEthaEdit is still around and open source. It supports Markdown side-by-side view along with numerous other languages. Excellent lightweight (26mb, native) editor, available directly via the macOS store at no cost.
https://subethaedit.net
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blueutil
CLI for bluetooth on OSX: power, discoverable state, list, inquire devices, connect, info, …
Project mention: Bluetui – A TUI for managing Bluetooth on Linux | news.ycombinator.com | 2025-11-04 -
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ObjectivePGP
ObjectivePGP is an open-source library for iOS and macOS that provides developers with tools for implementing OpenPGP encryption and decryption, digital signing, and signature verification in their applications, thereby enhancing security and data integrity.
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hear
Command line interface for the built-in speech recognition and transcription capabilities in macOS.
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MusaicFM
Screensaver inspired by Apple’s inbuilt iTunes Screensaver. It can display Artwork by Spotify or last.fm Profile Data.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Objective-C OSX discussion
Objective-C OSX related posts
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Hammerspoon: Powerful Automation of macOS
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Key, in sight [Creative uses of keyboard shortcuts and macros]
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Hammerspoon: A tool for powerful automation of OS X
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Hammerspoon: A tool for powerful automation of macOS
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Show HN: BlueBoy, a macOS CLI for Bluetooth management
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How to Get macOS Notifications for Long-Running Processes (Even over SSH!)
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Show HN: TUI Bluetooth Connector for Mac
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A note from our sponsor - SaaSHub
www.saashub.com | 19 Aug 2026
Index
What are some of the best open-source OSX projects in Objective-C? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | hammerspoon | 15,934 |
| 2 | Sloth | 8,930 |
| 3 | terminal-notifier | 7,282 |
| 4 | syncthing-macos | 3,868 |
| 5 | Platypus | 3,436 |
| 6 | Strongbox | 1,451 |
| 7 | SubEthaEdit | 1,430 |
| 8 | blueutil | 1,268 |
| 9 | spaces-renamer | 1,229 |
| 10 | MacGap2 | 1,186 |
| 11 | MacForge | 1,179 |
| 12 | mySIMBL | 993 |
| 13 | yubiswitch | 925 |
| 14 | ObjectivePGP | 724 |
| 15 | hear | 671 |
| 16 | seashore | 536 |
| 17 | MusaicFM | 346 |
| 18 | macchanger | 271 |
| 19 | grsyncx | 103 |
| 20 | ManOpen | 33 |
| 21 | Uppercut | 4 |
| 22 | Hackintosh-LegionY530-High_Sierra | 3 |
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